This is one way for you as a visual artist/illustrator and also tattoo artist to stop being lost without knowing how much your work is worth. I hope this helps you .
There are fields that you can leave blank if you have no costs. It is worth pointing out that this does not make your hour cheaper, so always consider it if you want to open your own studio or even leave home for an independent life.
Remember that your figures are based on your cost of living calculations. Try to always defend your values and always research if the work is editorial and for brands each country often has organizations and associations that help with commercial fees. Make a contract! And remember to charge for copyright in case of reprinting. I hope I can be of help!